/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jclouds.cloudsigma2.functions;

import com.google.common.base.Function;
import com.google.gson.JsonObject;
import org.jclouds.cloudsigma2.domain.CreateSubscriptionRequest;
import org.jclouds.javax.annotation.Nullable;

import javax.inject.Singleton;

@Singleton
public class CreateSubscriptionRequestToJson implements Function<CreateSubscriptionRequest, JsonObject> {
   @Override
   public JsonObject apply(@Nullable CreateSubscriptionRequest input) {
      if (input == null) {
         return null;
      }

      JsonObject createSubscriptionObject = new JsonObject();

      if (input.getAmount() != null) {
         createSubscriptionObject.addProperty("amount", input.getAmount());
      }

      if (input.getPeriod() != null) {
         createSubscriptionObject.addProperty("period", input.getPeriod());
      }

      if (input.getResource() != null) {
         createSubscriptionObject.addProperty("resource", input.getResource().value());
      }

      return createSubscriptionObject;
   }
}
